<?php
/*
 * @copyright   Leyun internet Technology(Shanghai)Co.,Ltd
 * @license     http://www.dzzoffice.com/licenses/license.txt
 * @package     DzzOffice
 * @link        http://www.dzzoffice.com
 * @author      zyx(zyx@dzz.cc)
 */
if(!defined('IN_DZZ') || !defined('IN_ADMIN')) {
	exit('Access Denied');
}
@set_time_limit(0);
include_once DZZ_ROOT.'./core/core_version.php';
include_once libfile('function/admin');
include_once libfile('function/cache');
$dzz_upgrade = new dzz_upgrade();
$step = intval($_GET['step']);
$step = $step ? $step : 1;
$operation = $_GET['operation'] ? trim($_GET['operation']) : 'check';


$steplang = array('', lang('template','founder_upgrade_updatelist'), lang('template','founder_upgrade_download'), lang('template','founder_upgrade_compare'), lang('template','founder_upgrade_upgrading'), lang('template','founder_upgrade_complete'), 'dbupdate' => lang('template','founder_upgrade_dbupdate'));
if($operation == 'patch' || $operation == 'cross') {
	if(!$_G['setting']['bbclosed']) {
		$msg='<p style="margin:10px 0;color:red">'.lang('template','upgrade_close_site').'</p>';
		$msg.='<p style="margin:10px 0"><input type="button" class="btn btn-primary" onclick="window.location.reload();" value="'.lang('template','founder_upgrade_reset').'" /></p>';
		$msg.="<p style=\"margin:10px 0\"><script type=\"text/javascript\">";
	    $msg.="if(history.length > (BROWSER.ie ? 0 : 1)) document.write('<a href=\"javascript:history.go(-1);\" >".lang('template','message_return')."</a>');";
		$msg.="</script></p>";
		if(!$_GET['iframe']){
			include template('upgrade');exit();
		}else{
			include template('upgrade_iframe');exit();	
		}
	}
	$msg='';
	$version = trim($_GET['version']);
	//$release = trim($_GET['release']);
	$locale = trim($_GET['locale']);
	$charset = trim($_GET['charset']);
	$upgradeinfo = $upgrade_step = array();

	if($_GET['ungetfrom']) {
		if(md5($_GET['ungetfrom'].$_G['config']['security']['authkey']) == $_GET['ungetfrommd5']) {
			$dbreturnurl = $_G['siteurl'].ADMINSCRIPT.'?mod=system&op=upgrade&operation='.$operation.'&version='.$version.'&step=5';
			dheader('Location: '.$_G['siteurl'].'install/update.php?step=prepare&from='.rawurlencode($dbreturnurl).'&frommd5='.rawurlencode(md5($dbreturnurl.$_G['config']['security']['authkey'])));
		} else {
			showmessage(lang('template','upgrade_param_error'));
		}
	}

	$upgrade_step = C::t('cache')->fetch('upgrade_step');
	$upgrade_step = dunserialize($upgrade_step['cachevalue']);
	$upgrade_step['step'] = $step;
	$upgrade_step['operation'] = $operation;
	$upgrade_step['version'] = $version;
	//$upgrade_step['release'] = $release;
	$upgrade_step['charset'] = $charset;
	$upgrade_step['locale'] = $locale;
	C::t('cache')->insert(array(
		'cachekey' => 'upgrade_step',
		'cachevalue' => serialize($upgrade_step),
		'dateline' => $_G['timestamp'],
	), false, true);

	$upgrade_run = C::t('cache')->fetch('upgrade_run');
	if(!$upgrade_run) {
		C::t('cache')->insert(array(
			'cachekey' => 'upgrade_run',
			'cachevalue' => serialize($_G['setting']['upgrade']),
			'dateline' => $_G['timestamp'],
		), false, true);
		$upgrade_run = $_G['setting']['upgrade'];
	} else {
		$upgrade_run = dunserialize($upgrade_run['cachevalue']);
	}

	if($step != 5) {

		foreach($upgrade_run as $type => $list) {
			if($type == $operation && $version == $list['latestversion'] ) {
				$dzz_upgrade->locale = $locale;
				$dzz_upgrade->charset = $charset;
				$upgradeinfo = $list;
				break;
			}
		}
		if(!$upgradeinfo) {
			$msg='<p style="margin:10px 0;color:red">'.lang('template','upgrade_none',array('upgradeurl' => upgradeinformation(-1))).'</p>';
			$msg.="<p style=\"margin:10px 0\"><script type=\"text/javascript\">";
			$msg.="if(history.length > (BROWSER.ie ? 0 : 1)) document.write('<a href=\"javascript:history.go(-1);\" >".lang('template','message_return')."</a>');";
			$msg.="</script></p>";
		    if(!$_GET['iframe']){
				include template('upgrade');exit();
			}else{
				include template('upgrade_iframe');exit();	
			}
		}

		$updatefilelist = $dzz_upgrade->fetch_updatefile_list($upgradeinfo);
		$updatemd5filelist = $updatefilelist['md5'];
		$updatefilelist = $updatefilelist['file'];
		$theurl = ADMINSCRIPT.'?mod=system&op=upgrade&operation='.$operation.'&version='.$version.'&locale='.$locale.'&charset='.$charset;

		if(empty($updatefilelist)) {
			$msg='<p style="margin:10px 0;color:red">'.lang('template','upgrade_download_upgradelist_error',array('upgradeurl' => upgradeinformation(-2))).'</p>';
			$msg.='<script type="text/JavaScript">setTimeout("location.href=\''.($thurl).'\';", 1000);</script>';
		    $msg.=' <p style="margin:10px 0"><a href="'.$thurl.'">'.lang('template','message_redirect').'</p>';
		    if(!$_GET['iframe']){
				include template('upgrade');exit();
			}else{
				include template('upgrade_iframe');exit();	
			}
		}

	}

	if($step == 1) {
		$linkurl = $theurl.'&step=2';
		include template('upgrade');exit();
	} elseif($step == 2) {
		$fileseq = intval($_GET['fileseq']);
		$fileseq = $fileseq ? $fileseq : 1;
		if($fileseq > count($updatefilelist)) {
			if($upgradeinfo['isupdatedb']) {
				$dzz_upgrade->download_file($upgradeinfo, 'install/data/install.sql');
				$dzz_upgrade->download_file($upgradeinfo, 'install/data/install_data.sql');
				$dzz_upgrade->download_file($upgradeinfo, 'update.php', 'update');
			}
			$linkurl = $theurl.'&step=3';
			$downloadstatus=3;
			$msg=lang('template','upgrade_download_complete_to_compare',array('upgradeurl' => upgradeinformation(0)));
			if(!$_GET['iframe']){
				$msg.='<script type="text/JavaScript">setTimeout("location.href=\''.$linkurl.'\';", 1000);</script>';
				$msg.=' <p><a href="'.$linkurl.'">'.lang('template','message_redirect').'</a></p>';
			}else{
				$msg.='<script type="text/JavaScript">setTimeout("parent.location.href=\''.$linkurl.'\';", 1000);</script>';
				$msg.=' <p><a href="javascript:;" onclick="parent.location.href=\''.$linkurl.'\';return false;">'.lang('template','message_redirect').'</a></p>';
				include template('upgrade_iframe');exit();
			}
		} else {
			if(!$_GET['iframe']){
				$linkurl =$theurl.'&step=2&fileseq='.$fileseq.'&iframe=1';
				$msg='<iframe id="downiframe" marginheight="0" marginwidth="0" allowtransparency="true" frameborder="0"  src="'.$linkurl.'" style="width:100%;height:100%;"></iframe>';
			}else{
				$downloadstatus = $dzz_upgrade->download_file($upgradeinfo, $updatefilelist[$fileseq-1], 'upload', $updatemd5filelist[$fileseq-1]);
				if($downloadstatus == 1) {
					$linkurl =$theurl.'&step=2&fileseq='.$fileseq.'&iframe=1';
					$msg=lang('template','upgrade_downloading_file', array('file' => $updatefilelist[$fileseq-1], 'percent' => sprintf("%2d", 100 * $fileseq/count($updatefilelist)).'%', 'upgradeurl' => upgradeinformation(1))).'<script type="text/JavaScript">setTimeout("location.href=\''.$linkurl.'\';", 50);</script>';
					$msg.=' <p><a href="'.$linkurl.'">'.lang('template','message_redirect').'</a></p>';
					
				} elseif($downloadstatus == 2) {
					$linkurl = $theurl.'&step=2&fileseq='.($fileseq+1).'&iframe=1';
					$msg='<p style="margin:10px 0">'.lang('template','upgrade_downloading_file', array('file' => $updatefilelist[$fileseq-1], 'percent' => sprintf("%2d", 100 * $fileseq/count($updatefilelist)).'%', 'upgradeurl' => upgradeinformation(1))).'<script type="text/JavaScript">setTimeout("location.href=\''.$linkurl.'\';", 50);</script></p>';
					$msg.=' <p><a href="'.$linkurl.'">'.lang('template','message_redirect').'</a></p>';
				} else {
					$linkurl = $theurl.'&step=2&fileseq='.($fileseq).'&iframe=1';
					$msg='<p style="margin:10px 0">'.lang('template','upgrade_redownload', array('file' => $updatefilelist[$fileseq-1], 'upgradeurl' => upgradeinformation(-3))).'</p>';
					$msg.='<p style="margin:10px 0;"><input type="button" class="btn btn-success"  value="重试" onclick="location.href=\''.$linkurl.'\'" />';
				}
				include template('upgrade_iframe');exit();
			}
		}
	} elseif($step == 3) {
		list($modifylist, $showlist, $ignorelist) = $dzz_upgrade->compare_basefile($upgradeinfo, $updatefilelist);
		if(empty($modifylist) && empty($showlist) && empty($ignorelist)) {
			$msg=lang('template','filecheck_nofound_md5file',array('upgradeurl' => upgradeinformation(-4)));
		}
		
		$linkurl = $theurl.'&step=4';
		
	} elseif($step == 4) {

		$confirm = $_GET['confirm'];
		if(!$confirm) {
			if($_GET['siteftpsetting']) {
				$action = $theurl.'&step=4&confirm=ftp'.($_GET['startupgrade'] ? '&startupgrade=1' : '');
				
				include template('upgrade');exit();
			}

			if($upgradeinfo['isupdatedb']) {
				$checkupdatefilelist = array('install/update.php', 'install/data/install.sql','install/data/install_data.sql');
				$checkupdatefilelist = array_merge($checkupdatefilelist, $updatefilelist);
			} else {
				$checkupdatefilelist = $updatefilelist;
			}
			if($dzz_upgrade->check_folder_perm($checkupdatefilelist)) {
				$confirm = 'file';
			} else {
				$linkurl = $theurl.'&step=4';
				$ftplinkurl = $linkurl.'&siteftpsetting=1';
				$msg='<p style="margin:10px 0">'.lang('template','upgrade_cannot_access_file').'</p>';
				$msg.='<p style="margin:10px 0"><input type="button" class="btn btn-primary" onclick="window.location.href=\''.$ftplinkurl.'\'" value="'.lang('template','founder_upgrade_set_ftp').'" />';
				$msg.=' &nbsp; <input type="button" class="btn btn-default" onclick="window.location.href=\''.$linkurl.'\'" value="'.lang('template','founder_upgrade_reset').'" /></p>';
				$msg.="<script type=\"text/javascript\">";
			    $msg.="if(history.length > (BROWSER.ie ? 0 : 1)) document.write('<a href=\"javascript:history.go(-1);\" class=\"lightlink\">".lang('template','message_return')."</a>');";
			    $msg.="</script>";
				include template('upgrade');exit();
			}
		}

		$paraftp = '';
		if($_GET['siteftp']) {
			foreach($_GET['siteftp'] as $k => $v) {
				$paraftp .= '&siteftp['.$k.']='.$v;
			}
		}
		if(!$_GET['startupgrade']) {
			if(!$_GET['backfile']) {
				$linkurl=$theurl.'&step=4&backfile=1&confirm='.$confirm.$paraftp;
				$msg='<p style="margin:10px 0">'.lang('template','upgrade_backuping',array('upgradeurl' => upgradeinformation(2))).'</p>';
				$msg.='<script type="text/JavaScript">setTimeout("location.href=\''.($linkurl).'\';", 1000);</script>';
				$msg.=' <p style="margin:10px 0"><a href="'.$linkurl.'">'.lang('template','message_redirect').'</p>';
				include template('upgrade');exit();
			}
			foreach($updatefilelist as $updatefile) {
				$destfile = DZZ_ROOT.$updatefile;
				$backfile = DZZ_ROOT.'./data/back/dzzoffice'.CORE_VERSION.'/'.$updatefile;
				if(is_file($destfile)) {
					if(!$dzz_upgrade->copy_file($destfile, $backfile, 'file')) {
						$msg='<p style="margin:10px 0">'.lang('template','upgrade_backup_error',array('upgradeurl' => upgradeinformation(-5))).'</p>';
						$msg.="<p style=\"margin:10px 0\"><script type=\"text/javascript\">";
						$msg.="if(history.length > (BROWSER.ie ? 0 : 1)) document.write('<a href=\"javascript:history.go(-1);\" >".lang('template','message_return')."</a>');";
						$msg.="</script></p>";
						include template('upgrade');exit();
					}
				}
			}
			$msg='<p style="margin:10px 0">'.lang('template','upgrade_backup_complete',array('upgradeurl' => upgradeinformation(3))).'</p>';
			$msg.='<script type="text/JavaScript">setTimeout("location.href=\''.($theurl.'&step=4&startupgrade=1&confirm='.$confirm.$paraftp).'\';", 1000);</script>';
			$msg.=' <p><a href="'.($theurl.'&step=4&startupgrade=1&confirm='.$confirm.$paraftp).'">'.lang('template','message_redirect').'</p>';
			include template('upgrade');exit();
		}

		$linkurl = $theurl.'&step=4&startupgrade=1&confirm='.$confirm.$paraftp;
		$ftplinkurl = $theurl.'&step=4&startupgrade=1&siteftpsetting=1';
		foreach($updatefilelist as $updatefile) {
			$srcfile = DZZ_ROOT.'./data/update/dzzoffice'.$version.'/'.$updatefile;
			if($confirm == 'ftp') {
				$destfile = $updatefile;
			} else {
				$destfile = DZZ_ROOT.$updatefile;
			}
			if(!$dzz_upgrade->copy_file($srcfile, $destfile, $confirm)) {
				if($confirm == 'ftp') {
					$msg='<p style="margin:10px 0">'.lang('template','upgrade_ftp_upload_error',array('file' => $updatefile, 'upgradeurl' => upgradeinformation(-6))).'</p>';
					$msg.='<p style="margin:10px 0"><input type="button" class="btn btn-primary" onclick="window.location.href=\''.$linkurl.'\'" value="'.lang('template','founder_upgrade_reupload').'" />';
					$msg.='&nbsp;<input type="button" class="btn btn-default" onclick="window.location.href=\''.$ftplinkurl.'\'" value="'.lang('template','founder_upgrade_reset_ftp').'" /></p>';
					$msg.="<p style=\"margin:10px 0\"><script type=\"text/javascript\">";
					$msg.="if(history.length > (BROWSER.ie ? 0 : 1)) document.write('<a href=\"javascript:history.go(-1);\" class=\"lightlink\">".lang('template','message_return')."</a>');";
					$msg.="</script></p>";
					include template('upgrade');exit();
					
				} else {
					$msg='<p style="margin:10px 0">'.lang('template','upgrade_copy_error',array('file' => $updatefile, 'upgradeurl' => upgradeinformation(-7))).'</p>';
					$msg.='<p style="margin:10px 0"><input type="button" class="btn btn-primary" onclick="window.location.href=\''.$linkurl.'\'" value="'.lang('template','founder_upgrade_recopy').'" />';
					$msg.='&nbsp;<input type="button" class="btn btn-default" onclick="window.location.href=\''.$ftplinkurl.'\'" value="'.lang('template','founder_upgrade_set_ftp').'" /></p>';
					$msg.="<p style=\"margin:10px 0\"><script type=\"text/javascript\">";
					$msg.="if(history.length > (BROWSER.ie ? 0 : 1)) document.write('<a href=\"javascript:history.go(-1);\" class=\"lightlink\">".lang('template','message_return')."</a>');";
					$msg.="</script></p>";
					include template('upgrade');exit();
					
				}
			}
		}
		if($upgradeinfo['isupdatedb']) {
			$dbupdatefilearr = array('update.php', 'install/data/install.sql','install/data/install_data.sql');
			foreach($dbupdatefilearr as $dbupdatefile) {
				$srcfile = DZZ_ROOT.'./data/update/dzzoffice'.$version.'/'.$dbupdatefile;
				$dbupdatefile = $dbupdatefile == 'update.php' ? 'install/update.php' : $dbupdatefile;
				if($confirm == 'ftp') {
					$destfile = $dbupdatefile;
				} else {
					$destfile = DZZ_ROOT.$dbupdatefile;
				}
				if(!$dzz_upgrade->copy_file($srcfile, $destfile, $confirm)) {
					if($confirm == 'ftp') {
						$msg='<p style="margin:10px 0">'.lang('template','upgrade_ftp_upload_error',array('file' => $updatefile, 'upgradeurl' => upgradeinformation(-6))).'</p>';
						$msg.='<p style="margin:10px 0"><input type="button" class="btn btn-primary" onclick="window.location.href=\''.$linkurl.'\'" value="'.lang('template','founder_upgrade_reupload').'" />';
						$msg.='&nbsp;<input type="button" class="btn btn-default" onclick="window.location.href=\''.$ftplinkurl.'\'" value="'.lang('template','founder_upgrade_reset_ftp').'" /></p>';
						$msg.="<p style=\"margin:10px 0\"><script type=\"text/javascript\">";
						$msg.="if(history.length > (BROWSER.ie ? 0 : 1)) document.write('<a href=\"javascript:history.go(-1);\" class=\"lightlink\">".lang('template','message_return')."</a>');";
						$msg.="</script></p>";
						include template('upgrade');exit();
						
					} else {
						$msg='<p style="margin:10px 0">'.lang('template','upgrade_copy_error',array('file' => $updatefile, 'upgradeurl' => upgradeinformation(-7))).'</p>';
						$msg.='<p style="margin:10px 0"><input type="button" class="btn btn-primary" onclick="window.location.href=\''.$linkurl.'\'" value="'.lang('template','founder_upgrade_recopy').'" />';
						$msg.='&nbsp;<input type="button" class="btn btn-default" onclick="window.location.href=\''.$ftplinkurl.'\'" value="'.lang('template','founder_upgrade_set_ftp').'" /></p>';
						$msg.="<p style=\"margin:10px 0\"><script type=\"text/javascript\">";
						$msg.="if(history.length > (BROWSER.ie ? 0 : 1)) document.write('<a href=\"javascript:history.go(-1);\" class=\"lightlink\">".lang('template','message_return')."</a>');";
						$msg.="</script></p>";
						include template('upgrade');exit();
						
					}
				}
			}
			$upgrade_step['step'] = 'dbupdate';
			C::t('cache')->insert(array(
				'cachekey' => 'upgrade_step',
				'cachevalue' => serialize($upgrade_step),
				'dateline' => $_G['timestamp'],
			), false, true);
			$dbreturnurl = $_G['siteurl'].ADMINSCRIPT.'?mod=system&op=upgrade&operation='.$operation.'&version='.$version.'&step=5';
			$linkurl=$_G['siteurl'].'install/update.php?step=prepare&from='.rawurlencode($dbreturnurl).'&frommd5='.rawurlencode(md5($dbreturnurl.$_G['config']['security']['authkey']));
			$msg='<p style="margin:10px 0">'.lang('template','upgrade_file_successful',array('upgradeurl' => upgradeinformation(4))).'</p>';
			$msg.='<script type="text/JavaScript">setTimeout(function(){createIframe(\''.$linkurl.'\');}, 1000);</script>';
			$msg.=' <p><a href="javascript:;" onclick="createIframe(\''.$linkurl.'\');return false">'.lang('template','message_redirect').'</p>';
			include template('upgrade');exit();
			
		}
		dheader('Location: '.ADMINSCRIPT.'?mod=system&op=upgrade&operation='.$operation.'&version='.$version.'&step=5');

	} elseif($step == 5) {
		$file = DZZ_ROOT.'./data/update/dzzoffice'.$version.'/updatelist.tmp';
		@unlink($file);
		@unlink(DZZ_ROOT.'./install/update.php');
		C::t('cache')->delete('upgrade_step');
		C::t('cache')->delete('upgrade_run');
		C::t('setting')->update('upgrade', '');
		updatecache('setting');
		$old_update_dir = './data/update/';
		$new_update_dir = './data/update'.md5('update'.$_G['config']['security']['authkey']).'/';
		$old_back_dir = './data/back/';
		$new_back_dir = './data/back'.md5('back'.$_G['config']['security']['authkey']).'/';
		$dzz_upgrade->copy_dir(DZZ_ROOT.$old_update_dir, DZZ_ROOT.$new_update_dir);
		$dzz_upgrade->copy_dir(DZZ_ROOT.$old_back_dir, DZZ_ROOT.$new_back_dir);
		$dzz_upgrade->rmdirs(DZZ_ROOT.$old_update_dir);
		$dzz_upgrade->rmdirs(DZZ_ROOT.$old_back_dir);
		
		$msg=lang('template','upgrade_successful',array('version' => $version, 'save_update_dir' => $new_update_dir, 'save_back_dir' => $new_back_dir, 'upgradeurl' => upgradeinformation(0)));
		
	}

} elseif($operation == 'check') {
	$msg='';
	if(!intval($_GET['rechecking'])) {
		$upgrade_step = C::t('cache')->fetch('upgrade_step');
		if(!empty($upgrade_step['cachevalue'])) {
			$upgrade_step['cachevalue'] = dunserialize($upgrade_step['cachevalue']);
			if(!empty($upgrade_step['cachevalue']['step'])) {
				$theurl = ADMINSCRIPT.'?mod=system&op=upgrade&operation='.$upgrade_step['cachevalue']['operation'].'&version='.$upgrade_step['cachevalue']['version'].'&locale='.$upgrade_step['cachevalue']['locale'].'&charset='.$upgrade_step['cachevalue']['charset'];
				
				$recheckurl =  ADMINSCRIPT.'?mod=system&op=upgrade&operation=recheck';
				if($upgrade_step['cachevalue']['step'] == 'dbupdate') {
					$dbreturnurl = $_G['siteurl'].$theurl.'&step=5';
					$stepurl =  $_G['siteurl'].'install/update.php?step=prepare&from='.rawurlencode($dbreturnurl).'&frommd5='.rawurlencode(md5($dbreturnurl.$_G['config']['security']['authkey']));
					$msg='<p style="margin:10px 0;">'.lang('template','upgrade_continue_db',array('steplang' => $steplang['dbupdate'],'stepurl'=>$stepurl,'recheckurl'=>$recheckurl)).'</p>';
					
				} else {
					$stepurl =  $theurl.'&step='.$upgrade_step['cachevalue']['step'];
					$msg='<p style="margin:10px 0;">'.lang('template','upgrade_continue',array('steplang' => $steplang[$upgrade_step['cachevalue']['step']],'stepurl'=>$stepurl,'recheckurl'=>$recheckurl)).'</p>';
					
					
				}
			}
		}
	} else {
		C::t('cache')->delete('upgrade_step');
	}
	
	if(!intval($_GET['checking']) || $msg) {
	}else{
		$dzz_upgrade->check_upgrade();
		dheader('Location: '.ADMINSCRIPT.'?mod=system&op=upgrade&operation=showupgrade');
	}

} elseif($operation == 'showupgrade') {
	
	if($_G['setting']['upgrade']) {
	
		C::t('cache')->insert(array(
			'cachekey' => 'upgrade_step',
			'cachevalue' => serialize(array('curversion' => $dzz_upgrade->versionpath())),
			'dateline' => $_G['timestamp'],
		), false, true);

		$upgraderow = $patchrow = array();
		$charset = str_replace('-', '', strtoupper($_G['config']['output']['charset']));
		$dbversion = helper_dbtool::dbversion();
		$locale = '';
		if($charset == 'BIG5') {
			$locale = 'TC';
		} elseif($charset == 'GBK') {
			$locale = 'SC';
		} elseif($charset == 'UTF8') {
			if($_G['config']['output']['language'] == 'zh_cn') {
				$locale = 'SC';
			} elseif($_G['config']['output']['language'] == 'zh_tw') {
				$locale = 'TC';
			}
		}
		if(!is_array($_G['setting']['upgrade'])) $_G['setting']['upgrade']=unserialize($_G['setting']['upgrade']);
		$list=array();
		foreach($_G['setting']['upgrade'] as $type => $upgrade) {
			$unupgrade = 0;
			if(version_compare($upgrade['phpversion'], PHP_VERSION) > 0 || version_compare($upgrade['mysqlversion'], $dbversion) > 0) {
				$unupgrade = 1;
			}
			$list[$type]['linkurl']=$linkurl = ADMINSCRIPT.'?mod=system&op=upgrade&operation='.$type.'&version='.$upgrade['latestversion'].'&locale='.$locale.'&charset='.$charset;
			if($unupgrade) {
				$list[$type]['title']='DzzOffice'.$upgrade['latestversion'].'_'.$locale.'_'.$charset;
				$list[$type]['btn1']= lang('template','founder_upgrade_require_config').' php v'.PHP_VERSION.'MYSQL v'.$dbversion;
			} else {
				$list[$type]['title']='DzzOffice'.$upgrade['latestversion'].'_'.$locale.'_'.$charset;
				$list[$type]['btn1']='<input type="button" class="btn btn-success" onclick="confirm(\''.lang('template','founder_upgrade_backup_remind').'\') ? window.location.href=\''.$linkurl.'\' : \'\';" value="'.lang('template','founder_upgrade_automatically').'">';
				$list[$type]['official']='<a class="btn btn-link" href="'.$upgrade['official'].'" target="_blank">'.lang('template','founder_upgrade_manually').'</a>';
			}
		}
	}else{
		$msg=lang('template','upgrade_latest_version');
	}
	
} elseif($operation == 'recheck') {
	$upgrade_step = C::t('cache')->fetch('upgrade_step');
	$upgrade_step = dunserialize($upgrade_step['cachevalue']);
	$file = DZZ_ROOT.'./data/update/DzzOffice'.$upgrade_step['version'].'/updatelist.tmp';
	@unlink($file);
	@unlink(DZZ_ROOT.'./install/update.php');
	C::t('cache')->delete('upgrade_step');
	C::t('cache')->delete('upgrade_run');
	C::t('setting')->update('upgrade', '');
	updatecache('setting');
	$old_update_dir = './data/update/';
	$dzz_upgrade->rmdirs(DZZ_ROOT.$old_update_dir);
	dheader('Location: '.ADMINSCRIPT.'?mod=system&op=upgrade');
}
include template('upgrade');
?>